- All sections
- C - Chemistrymetallurgy
- C25B - Electrolytic or electrophoretic processes for the production of compounds or non- metalsapparatus therefor
- C25B 13/02 - DiaphragmsSpacing elements characterised by shape or form
Patent holdings for IPC class C25B 13/02
Total number of patents in this class: 538
10-year publication summary
|
40
|
29
|
24
|
22
|
33
|
35
|
48
|
84
|
112
|
51
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Asahi Kasei Kabushiki Kaisha | 2615 |
34 |
| Reinz-Dichtungs-GmbH | 271 |
22 |
| Panasonic Intellectual Property Management Co., Ltd. | 30506 |
14 |
| Agfa-Gevaert | 281 |
14 |
| de Nora Permelec Ltd | 158 |
10 |
| Tokuyama Corporation | 1362 |
10 |
| Twelve Benefit Corporation | 141 |
10 |
| Toray Industries, Inc. | 6840 |
9 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6276 |
8 |
| Johnson Matthey Hydrogen Technologies Limited | 112 |
8 |
| Toshiba Corporation | 12246 |
7 |
| Uop LLC | 4191 |
7 |
| Calera Corporation | 106 |
7 |
| Chlorine Engineers Corp., Ltd. | 25 |
7 |
| LG Chem, Ltd. | 17464 |
6 |
| Robert Bosch GmbH | 42170 |
6 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10740 |
6 |
| ThyssenKrupp Uhde Chlorine Engineers (Japan) Ltd. | 13 |
6 |
| Hysata Pty Ltd | 19 |
6 |
| Hyundai Motor Company | 21174 |
5 |
| Other owners | 336 |